Sectional conveyer



Oct. 30, 1951 H. c. POLLlTZ SECTIONAL CONVEYER 2 SHEETS--SHEET 1 Filed Feb. 21, 1950 INVENTOR.

HAROLD C. POLLITZ Oct. 30, 1951 H. c. PQLLITZ 2,573,486

SECTIONAL CONVEYER Fiied Feb. -21,' 1950 2 SHEETSSHEET 2 FIG. 3

INVEN TOR. HAROLD c. POLLITZ Patented Oct. 30, 1951 22573, 186 SEQTIONAL CONVEYERh Harold Gz Pollitz," Cedar Rapids; Iowa; assignor to lowa Manufacturing Companym corpcrati'on Application Ee'bi-uarmZl, 195 Srial.No..1'45,'539

1 claim.v (c1.19s 204 The present inventionrelates to conveyors of the type havinga'belt supported "by a series' of rollers disposed transverselytheretmandmore particularly; to improvements" in sectional belt conveyors of the; troughed' .belt type particularly adapted'ifor use in" mines" underground, it' is understood" however; that'the" use of the inventiOII'IlSiIl' no way' restricted to' the use in mining operations;

Those familiar-"with the 4 art known' howimportant it;'is" to' be' able," to assemble and1disassemble conveyprsof this type intthe confines ofunderground "mines, and how necessaryit is to beable toadjustthebeltfrollers to conform to the requirements. of the uneven" contours found irrthe mines "and to-alignthe belt,,and toadd conveyor sections fromjknocked-down parts. An object of my invention is to provide. asimplifiedconstruction. of such sectional conveyors jand ccn veg/or sections and more particularly provide meansiorrelocation and adjustmentof' belt supporting rollers-in relationto one another and in relation to'th'e intermediate stands:

Ahotherobject'is to'provide a: simplified construction forpivotal adjustmentiof the upper. belt.

supporting rollers for alignment of the belt.

Other features and advantages of my invention will become apparent to 'those skilled .in the ,art upon consideration of the accompanying drawlugs and following specificatiomwherein is. disclosed an. embodiment of my invention with the understanding however, that such changes-may be made. thereinasfallwith'in the scope ofth'e appended claim, without departing from the spirit of the invention.

In said drawings:

Fig. 1 is'a' perspective view of a sectional conveyor section constructed in accordance-with the teachings of the present invention;.

Fig, 2 :is a transverse sectional view thereof, as on'fline 2-; -2, Fig. 1; I v

Fig. 1-3 is-,-aplan view of a.-p a rt.ofthe ,conveyor section showing the arrangemenhpf the-rollers and,-roller. support for thesuppenbelt run;

Fig. 4 is a fragmentary plan view showing a cross section of the roller support extension with the arcuate surfaces and the clamping means taken on line 4-4, Fig. 2;

Fig. 5 is a transverse sectional view taken along the line 5--5, Fig. 1.

Since my invention pertains particularly to the intermediate section of a sectional conveyor, the drive and tail end pieces are not shown or described, assuming that any known design may be utilized. In the drawing, Fig. 1, shows a part standard I O isfurthermore providedwitw our key-hole slots I2, two at each--endiat" a n-'-equal distance from1the-centerlirre f"the standard} the heyholeslots. I2: are-"located in-Zsuc'h away that the. narrowpart'loffth'eslotiisout in tlie'vertical part of thesta-ndard l Oan-dthe 'wid partof the' slotdn the horizontalipartin order to' rec'eiye tlie and function' of which will" be more fullyyde scri'r'tjed as this-specificationproceeds: v p

The longitudinally extendingjspa-cingimembersk l 5 "are an le "bars .held withoneflange in" a Vera ticaliposition to matclrrthe-standard ID? inthe? vertical flange is :providedfa'pluralitypf slots I '6 spaced evenly and with the centerline -para-l-lel to the edge Theslotswfareofsucha-size-andf shape. that.theiijwill allow 'theheadFof" a T-bfolt I 3to be. insertedjwli'en the headis' turnedfin 'one direction only, and allow .for-a longitudinalmove; mentiof ;'the,'.T -bo lt""l 3L. The-spacing member-345 are furthermore provided 'withrai circuia-r' holef-I -l at each end of'th'e vertical fflangetoaccor'nmodat'e the, shank, of the aforementioned Tbolt I s nse engagementwith the standards 'I 0;, TOithB' more zontal flange of the longitudinallyextending? spacing members. I5 are securely attached by welding ,or other means'th'e spilfplates isi" X- tndin g inwardl"y in an overlapping?relatiorrboth th ne another and' iththeJstandards 'I t. The"- spill plates I STare supported by; andwestion one: or thesuppprting members. I 5 and'may be fi'xed ly' or detachably se cured j to the frame supporting members. For. ease ioffhandling, they may be" detachediandiseparate from the frame"memb''ers andjlaidinpositiOnOnthejOb; Thfese'spill plates providea ,cover to protect'the lowerbelti run I Q I against'spillage "from, th'eupper belt'runz'fif The spill plates do not'serve any function of'supporting the rollers for the upper run, and should the occasion arise, the spill plates may be omitted or removed, without impairing the travel of the belt, for it at all times is supported by the trough-like rollers, which rollers in turn are supported or carried by the supporting frame members I5.

To add stiifness and rigidity to the spill plates I8 they are furthermore embossed the full length and a reinforcing member 2| is locked in place crosswise by means of a T-bolt I3- and camlock a ll engaged in matching slots in the overlapping portion of the spill plates I8. The spacing members I form a support for two or more transversely disposed upper idler roller supports 2 with the three upper idler rollers arranged in a troughlike formation for the support of the upper belt run 20. The idler shafts and clamps, the upper part of the idler support, and'the idler rollers are constructed in the usual way.

Referring now in particular to the T-bolt I3 and camlock I4, this novel clamping device can best be described as follows.

sists of a flat head no wider than the shank of the bolt for insertion in the slots with the head extensions forming the T, for engagement after 1 The T-bolt I3 conbling with the camlock I4 by means of apin 22. The camlock I4 is preferably made from two stampings welded together with a narrow spacer, each stamping formed as a circular part with an integral handle extension and an eccentrically located circular hole 23 in the circular part for assembling with the T-bolt I3 and the pin 22. It can readily be seen that this combination will form a simple and reliable clamping device to be used both for the connection of stands and spacing members, as well as the mounting of the idler roller supports.

' Considering next an upper idler roller support 24 as shown in Figs. 2, 3, and 4, and in particular the novel form of construction together with the vertical extensions 26, straddling the spacing the upper roller support 24 around an imaginary v point on the center line of the conveyor, for

alignment of the belt before the vertical extensions 26 are clamped in place by the clamping plate 28 with T-bolts I3. inserted in slots I6 and camlocks I4. The clamping plate 28 is made from heavy gauge stock with a depth of the central offset slightly smaller than the thickness of the vertical idler support extensions 26, for efiective clamping. Each end of the clamping plate 28 is provided with a circular hole for the shank of the T-bolt I3, the circular holes matching the slots I6.

Further considering the details of the novel construction of the support 29 for the flat idler roller 30 supporting the lower belt run I9 as shown in Fig. 5. The construction of the flat idler roller bearing, shaft 32, and shaft clamp is well known to those familiar with the art and will not be described here. The important and novel feature of the support is the combination of the shaft clamp and the double U-formed clamp 3I making one unit, which can be slideably engaged in such a way with the spacing members I5, that the proper location for the idler roller 30 can be selected and the double U-formed clamps 3| securely locked in place by means of the camlock 33, which is constructed substantially as described previously under camlock I4.

From the foregoing, it will be seen that I have provided a novel form of a sectional conveyor section, which may readily be brought into the mine in a knocked-down form and assembled without the use of tools, and that the standards ID are connected in such a way, by means of the longitudinally extending spacing members I5 with the spill plates I8, the T-bolt I3 and the camlock I4 that the conveyor may readily conform to the uneven contour of the mine floor and provide the necessary protection from spillage unto the lower belt run. Furthermore, in providing the novel form of adjustment, both longitudinally and pivotal, of the upper idler roller supports and the flat idler supports, belt alignment, and the best possible spacing of the rollers for the conveyor belt, conforming to the requirements can be provided at all times.

What I claim is:

A sectional belt conveyor section comprising spaced apart standards and longitudinally extending spacing members detachably connecting said standards together by means of T-bolts and cam-locks, said spacing members forming sides extending along said belt and having spill plates securely attached, said spill plates extending inwardly from said spacing members in an overlapping relation one with another and in an overlapping relation with the standards to prevent the spillage of material onto the lower belt run, and longitudinally embossed, said spacing members and spill plates being reinforced and locked together with a removable bar crosswise, substantially at thev center of said conveyor section, and locked in place by a T-bolt and cam-lock, said spacing members being provided with a plurality of longitudinally spaced slots for the adjustable mounting of the roller sup-ports for the upper belt run, said roller supports having downward extensions, straddling said spacing members, and arcuate surfaces to the outside and to the inside of said extensions for clamping engagement with said spacing members by means of clamping plates, T-bolts inserted in said slots and cam-locks, and supporting rollers for the lower belt run slidably mounted on said spacing members in relation to the standards and clamped in place by means of double U-formed clamps and cam-locks.

HAROLD C. POLLITZ.

REFERENCES CITED The following references are of record in the I file of this patent:

UNITED STATES PATENTS Number Name Date 377,648 Sinning Feb. 7, 1888 2,179,186 Kendall Nov. 7, 1939 2,179,187 Kendall Nov. 7, 1939 2,437,499 Benjamin Mar. 9, 1948 

